Reusable fire window

By designing reusable fire escape windows and utilizing blocking and lifting mechanisms to prevent injury from glass shards, the problems of glass shards scattering and difficulty in opening quickly in existing technologies have been solved, achieving safe and efficient escape and reducing maintenance costs.

CN224002614UActive Publication Date: 2026-03-17NORTHWEST ENGINEERING CORPORATION LIMITED
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Patent Information

Application Number
CN202520527708.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-17
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Existing fire rescue windows use fixed glass structures, which can easily cause safety glass shards to scatter and injure people in the event of an emergency. They are also difficult to open quickly, affecting escape efficiency and increasing maintenance costs.

Method used

A reusable fire-fighting window was designed, which enables the safety glass to be disassembled and moved through a blocking mechanism and a lifting mechanism to avoid direct shattering of the glass. It includes an electromagnetic lock, a lifting rod, and a drive assembly to ensure that the glass can be safely stored and restored to normal use in case of an emergency.

Benefits of technology

It reduces injuries to people from broken glass, improves escape efficiency, lowers maintenance costs, and ensures the normal use of glass in non-emergency situations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a reusable fire-fighting window, and belongs to the technical field of building fire-fighting facilities. The fire window comprises a window frame, safety glass, a blocking mechanism and a lifting mechanism. The window frame is provided with a first section and a second section which are mutually connected; wherein the first section is provided with an opening, and the second section is provided with an accommodating groove; the safety glass has a first state and a second state, and in the first state, the safety glass is arranged in the opening under the action of the blocking mechanism; in the second state, under the action of the blocking mechanism, the opening communicates with the containing groove, and the safety glass is arranged in the containing groove; the lifting mechanism is arranged in the containing groove and used for lifting the safety glass located in the containing groove into the opening. The fire-fighting window has the effects of reducing the maintenance cost and reducing secondary injury of firefighters and trapped persons.
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Description

Technical Field

[0001] This disclosure relates to the field of building fire protection facilities technology, and more specifically, to a reusable fire-fighting window. Background Technology

[0002] Existing fire escape windows generally use fixed glass structures. In case of emergency, trapped personnel or firefighters usually break the safety glass with external force to create an escape route. However, this causes the following problems: First, when the safety glass is broken by external force, the shards may fall near the fire escape window and cause injury to trapped personnel or firefighters; second, in more serious situations, trapped personnel may be unable to break the safety glass instantly due to psychological factors, preventing them from escaping quickly and endangering their lives; third, broken safety glass cannot be reused, thus increasing maintenance costs.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a reusable fire-fighting window. This fire-fighting window can be reused, reducing maintenance costs, and at the same time, it can reduce the occurrence of injuries caused by shards of safety glass in the event of an emergency.

[0005] According to one aspect of this disclosure, a reusable fire window is provided, the fire window including a window frame, safety glass, a blocking mechanism, and a lifting mechanism;

[0006] The window frame has a first segment and a second segment that are connected to each other;

[0007] The first segment has an opening, and the second segment has a receiving groove;

[0008] The safety glass has a first state and a second state. In the first state, the safety glass is disposed in the opening under the action of the blocking mechanism.

[0009] In the second state, under the action of the blocking mechanism, the opening communicates with the receiving groove, and the safety glass is disposed in the receiving groove;

[0010] The lifting mechanism is located in the receiving groove and is used to lift the safety glass located in the receiving groove into the opening.

[0011] According to one embodiment of the present disclosure, the blocking mechanism includes at least two electromagnetic locks disposed opposite to each other and a first control component for controlling the movement of the electromagnetic locks;

[0012] The electromagnetic lock is located between the first section and the second section; in the first state, the output ends of the electromagnetic locks that are arranged opposite to each other are close to each other, the opening is closed with the receiving groove, and the safety glass is located in the opening; in the second state, the output ends of the electromagnetic locks that are arranged opposite to each other are far apart, the opening is connected with the receiving groove, and the safety glass is located in the receiving groove.

[0013] The first control component is electrically connected to the electromagnetic lock and is configured to drive the output end of the electromagnetic lock forward or backward via an electrical signal.

[0014] According to one embodiment of this disclosure, the width of the output end of the electromagnetic lock is not less than one-fifth of the thickness of the safety glass.

[0015] According to one embodiment of this disclosure, the blocking mechanism further includes a second control component;

[0016] The second control component includes a first connecting rod, a second connecting rod, and a return spring;

[0017] The first connecting rod is connected to the output end of the electromagnetic lock, and the movement direction of the first connecting rod is the same as the movement direction of the output end of the electromagnetic lock;

[0018] The second connecting rod is connected to the first connecting rod, and the axial direction of the second connecting rod is perpendicular to the direction of movement of the first connecting rod;

[0019] The return spring is coaxially sleeved on the first connecting rod and is used to drive the first connecting rod to return to its original position.

[0020] According to one embodiment of this disclosure, the lifting mechanism includes a lifting rod and a drive assembly;

[0021] The lifting rod is slidably disposed in the receiving groove via the driving assembly, and the lifting rod is located directly below the safety glass;

[0022] The drive assembly is used to drive the lifting rod to move up and down within the receiving slot.

[0023] According to one embodiment of this disclosure, the drive assembly includes a drive motor, at least two drive pulleys, a drive belt, and a connecting block;

[0024] The drive pulley is rotatably connected to the receiving groove;

[0025] The drive belt is sleeved on the plurality of drive pulleys;

[0026] The connecting block is connected to the drive belt;

[0027] The lifting rod is connected to the connecting block, and the axial direction of the lifting rod is perpendicular to the direction of movement of the safety glass in the receiving groove;

[0028] The drive motor is used to drive the drive pulley to rotate.

[0029] According to one embodiment of this disclosure, the lifting mechanism further includes a first buffer component;

[0030] The first buffer assembly includes at least one buffer support platform;

[0031] The buffer support platform is connected to the lifting rod and positioned close to the safety glass. The buffer support platform is made of flexible material.

[0032] According to one embodiment of this disclosure, the distance between the bottom of the first segment and the side of the buffer support platform away from the bottom of the second segment is the same as the length direction of the safety glass.

[0033] According to one embodiment of this disclosure, the lifting mechanism further includes a second buffer component;

[0034] The second buffer assembly includes multiple buffer springs;

[0035] Multiple buffer springs are disposed at the bottom of the second section, the axial direction of the buffer springs is the same as the direction of movement of the safety glass in the receiving groove, and the buffer support platform can contact the top of the buffer springs.

[0036] According to one embodiment of this disclosure, the safety glass has a warning section.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0039] Figure 1 This is a schematic diagram of the overall structure of a fire-fighting window in one embodiment of the present disclosure.

[0040] Figure 2 This is a cross-sectional view of a fire-fighting window in one embodiment of the present disclosure.

[0041] Figure 3 This is a partial structural diagram of a fire-fighting window in one embodiment of the present disclosure.

[0042] Figure 4 This is a schematic diagram of the structure of the second control component in one embodiment of the present disclosure.

[0043] Figure 5 This is a partial structural diagram of a fire-fighting window in one embodiment of the present disclosure.

[0044] Figure 6 This is a schematic diagram of the structure of the driving component in one embodiment of the present disclosure.

[0045] Figure 7 This is a schematic diagram of the second hidden section structure of a fire-fighting window in one embodiment of the present disclosure.

[0046] Figure 8 yes Figure 7 Enlarged view of part A.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Window frame; 11. First section; 111. Opening; 12. Second section; 121. Receiving groove; 122. Storage groove; 2. Blocking mechanism; 21. Electromagnetic lock; 22. First control component; 23. Second control component; 231. First connecting rod; 232. Second connecting rod; 233. Return spring; 3. Lifting mechanism; 31. Lifting rod; 32. Drive component; 321. Drive motor; 322. Drive pulley; 323. Drive belt; 324. Connecting block; 33. First buffer component; 331. Buffer support platform; 34. Second buffer component; 341. Buffer spring; 4. Safety glass; 41. Warning section. Detailed Implementation

[0049] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0050] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one mechanism to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device in the icon is flipped upside down, the mechanism described as "upper" will become the mechanism described as "lower." When a structure is "upper" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0051] In related technologies, most fire rescue windows (fire escape windows) use fixed glass structures. In case of an emergency, trapped personnel or rescuers will use external force to break the safety glass of the fire escape window to create an escape route and rescue the trapped personnel. However, this method results in the scattering of safety glass shards near the fire escape window, potentially causing cuts to trapped personnel during evacuation or to firefighters during rescue. Furthermore, broken safety windows are difficult to maintain. Before firefighters arrive, trapped personnel may be psychologically or impulsively hesitant to use external force to open the safety glass, posing a risk to their personal safety.

[0052] Based on this, see Figure 1 , Figure 2 , Figure 6 This disclosure provides a reusable fire-fighting window. The fire-fighting window includes a window frame 1, safety glass 4, a blocking mechanism 2, and a lifting mechanism 3. The window frame 1 has a first section 11 and a second section 12 connected to each other. The first section 11 has an opening 111, and the second section 12 has a receiving groove 121. The safety glass 4 has a first state and a second state. In the first state, the safety glass 4 is disposed in the opening 111 under the action of the blocking mechanism 2. In the second state, the opening 111 communicates with the receiving groove 121 under the action of the blocking mechanism 2, and the safety glass 4 is disposed in the receiving groove 121. The lifting mechanism 3 is disposed in the receiving groove 121 and is used to lift the safety glass 4 located in the receiving groove 121 into the opening 111.

[0053] In this embodiment, when an emergency occurs, trapped personnel or firefighters can adjust the blocking mechanism 2. Under the action of the blocking mechanism 2, the opening 111 and the receiving groove 121 open, allowing the safety glass 4 to enter the receiving groove 121. At this time, the opening 111 is open, facilitating rescue by firefighters or escape of trapped personnel. This design allows for rescue of trapped personnel without damaging the safety glass 4, reducing the risk of injury to firefighters and trapped personnel from broken safety glass 4 and reducing maintenance costs for the fire window. After the emergency is over, the lifting mechanism 3 is activated. Under the action of the lifting mechanism 3, the safety glass 4 in the receiving groove 121 moves to the opening 111, facilitating the normal operation of the fire window.

[0054] As an example, window frame 1 can be a fireproof and rustproof metal structure.

[0055] It is understood that in the embodiments disclosed herein, the first state refers to the normal use state of the fire window; the second state refers to the state of the fire window for rescuing trapped personnel in the event of an emergency.

[0056] In some embodiments of this disclosure, see Figure 1 , Figure 2 , Figure 3 , Figure 5 The blocking mechanism 2 includes at least two opposing electromagnetic locks 21 and a first control component 22 for controlling the movement of the electromagnetic locks 21. The electromagnetic locks 21 are installed between the first segment 11 and the second segment 12. As an example, the electromagnetic locks 21 can be installed on the first segment 11. In the first state, the output ends of the opposing electromagnetic locks 21 are close to each other and in contact with each other. The opening 111 and the receiving groove 121 are closed, and the output ends support the safety glass 4, which is disposed in the opening 111. In the second state, the output ends of the opposing electromagnetic locks 21 are far apart, and the opening 111 and the receiving groove 121 are connected. The safety glass 4 falls into the receiving groove 121. The first control component 22 is electrically connected to the electromagnetic locks 21 and is configured to drive the output ends of the electromagnetic locks 21 to move forward or retract via an electrical signal.

[0057] In other embodiments, multiple sets of opposing electromagnetic locks 21 can be provided along the length of the first segment 11 to improve the support effect on the safety glass and enhance the stability of the fire-resistant window. It should be noted that this disclosure does not specify the number of sets of electromagnetic locks 21 provided along the length of the first segment 11.

[0058] Specifically, in the first state, the first control component 22 is activated, causing the output ends of the opposing electromagnetic locks 21 to move closer together. The output ends of the opposing electromagnetic locks 21 support the safety glass 4, which is located within the opening 111, allowing the fire escape window to function normally. In the second state, the first control component 22 is activated, causing the output ends of the opposing electromagnets to move away from each other. This connects the receiving groove 121 with the opening 111, causing the safety glass 4 to fall into the receiving groove 121, exposing the opening 111 for trapped personnel to escape, and also allowing the safety glass 4 to be retracted into the receiving groove 121.

[0059] Furthermore, the movement of the electromagnetic lock 21 is controlled by the first control component 22. The first control component 22 is a technology well known to those in the art, and will not be described in detail in this embodiment. Meanwhile, the power supply for the first control component 22 comes from a waterproof and fireproof socket in the usage location, which can be installed on or near the wall below the fire-resistant window.

[0060] As an example, the first control component 22 can be located on at least one side of the window frame 1, either inside or outside. Of course, the first control component 22 can be located on either the inside or outside of the window frame 1. Furthermore, the first control component 22 can be configured for single-open, single-control mode, requiring a re-press to restore power after being pressed.

[0061] In some embodiments of this disclosure, the width of the output end of the electromagnetic lock 21 is not less than one-fifth of the thickness of the safety glass 4. This configuration provides better support for the safety glass 4, ensuring its normal operation in the first state and guaranteeing the stability of the fire-fighting window in its first state. It should also be noted that, in these embodiments, the width of the output end of the electromagnetic lock 21 can be understood as the length of the extended portion of the electromagnetic lock 21.

[0062] In some embodiments of this disclosure, see Figure 1 , Figure 2 , Figure 4 The blocking mechanism 2 also includes a second control component 23; the second control component 23 includes a first connecting rod 231, a second connecting rod 232, and a return spring 233; the first connecting rod 231 is connected to the output end of the electromagnetic lock 21, and the movement direction of the first connecting rod 231 is the same as the movement direction of the output end of the electromagnetic lock 21; the second connecting rod 232 is connected to the first connecting rod 231, and the axial direction of the second connecting rod 232 is perpendicular to the movement direction of the first connecting rod 231; the return spring 233 is coaxially sleeved on the first connecting rod 231 and is used to drive the first connecting rod 231 to return to its original position.

[0063] It is understandable that in some dangerous situations, the first control component 22 may fail. The second control component 23 provided in this embodiment can open the safety glass 4 when the first control component 22 fails.

[0064] Specifically, when the first control component 22 fails, the trapped person or rescuer can pull the second connecting rod 232. The second connecting rod 232 moves, and the movement of the second connecting rod 232 drives the first connecting rod 231 to move. At this time, the return spring 233 is compressed and deformed, and the movement of the first connecting rod 231 drives the output end of the electromagnetic lock 21 to move. At this time, the receiving groove 121 and the opening 111 are connected, and the safety glass 4 falls into the receiving groove 121.

[0065] It should be noted that, in this embodiment, the movement of the output end of one electromagnetic lock 21 can also achieve the purpose of the safety glass 4 falling into the receiving groove 121. That is to say, when the first control component 22 fails, the trapped person can adjust the second control component 23 (located inside the window frame 1) to expose the opening 111, or the rescuer (located outside the window frame 1) can adjust the second control component 23 to expose the opening 111. This embodiment will not elaborate on this.

[0066] In some embodiments of this disclosure, see Figure 1 , Figure 6 , Figure 7 , Figure 8 The lifting mechanism 3 includes a lifting rod 31 and a drive assembly 32; the lifting rod 31 is slidably disposed in the receiving groove 121 via the drive assembly 32, and the lifting rod 31 is located directly below the safety glass 4; the drive assembly 32 is used to drive the lifting rod 31 to move up and down within the receiving groove 121.

[0067] Specifically, in the first state, the lifting rod 31 is located at the bottom of the second section 12. When in the second state, the safety glass 4 in the first section 11 enters the second section 12 and contacts the lifting rod 31. At this time, the opening 111 on the first section 11 is exposed, which allows trapped personnel to escape and rescuers to carry out rescues. When the danger ends, the drive assembly 32 is activated, which drives the lifting rod 31 to move. The lifting rod 31 drives the safety glass 4 to move, and the safety glass 4 can enter the opening 111.

[0068] Understandably, when the danger has been eliminated and the fire window needs to be restored to normal use, the lifting rod 31 can be moved to the bottom of the second section 12 in advance by the drive assembly 32 so that the safety glass 4 can fall normally in case of a subsequent emergency.

[0069] It is understood that in this embodiment, the lifting rod 31 has a support portion on the side near the safety glass 4 (not specifically marked in the accompanying drawings), which can support the falling safety glass 4 and improve the stability of the fire window.

[0070] As an example, see Figure 6 The drive assembly 32 includes a drive motor 321, at least two drive pulleys 322, a drive belt 323, and a connecting block 324. The drive pulleys 322 are rotatably connected to the receiving groove 121, with some drive pulleys 322 located at the top of the receiving groove 121 and others located at the bottom of the receiving groove 121. The multiple drive pulleys 322 are located on the same vertical line. The drive belt 323 is sleeved on the multiple drive pulleys 322. The connecting block 324 is connected to the drive belt 323. The lifting rod 31 is connected to the connecting block 324, and the axial direction of the lifting rod 31 is perpendicular to the direction of movement of the safety glass 4 in the receiving groove 121. The drive motor 321 is used to drive the drive pulleys 322 to rotate.

[0071] As another example, participate Figure 6 , Figure 7 A storage slot 122 can be provided at the installation position of the drive component 32. The storage slot 122 is connected to the receiving slot 121, and the storage slot 122 can be used to install the drive component 32. Specifically, when the safety glass 4 in the opening 111 falls into the receiving slot 121, part of the safety glass 4 falls into the storage slot 122. The storage slot 122 can limit the falling direction of the safety glass 4, thereby improving the protection of the safety glass 4.

[0072] Furthermore, rubber gaskets may be installed on the inner wall of the storage tank 122 (not shown in the attached drawings of this application).

[0073] Specifically, when it is necessary to send the safety glass 4 located in the receiving groove 121 into the opening 111, the drive motor 321 is turned on. The drive motor 321 drives the drive pulley 322 to rotate. Under the action of the drive belt 323, multiple drive pulleys 322 rotate. The movement of the drive belt 323 drives the connecting block 324. The movement of the connecting block 324 drives the lifting rod 31 to move. The movement of the lifting rod 31 drives the safety glass 4 to move, thereby achieving the purpose of sending the safety glass 4 in the receiving groove 121 into the opening 111.

[0074] In some implementations, see Figure 6 , Figure 7 , Figure 8The lifting mechanism 3 also includes a first buffer assembly 33; the first buffer assembly 33 includes at least one buffer support platform 331; the buffer support platform 331 is connected to the lifting rod 31 and is disposed close to the safety glass 4, and the buffer support platform 331 is made of flexible material. The buffer support platform 331 can buffer the safety glass 4 falling onto the lifting rod 31 to prevent damage to the safety glass 4.

[0075] As an example, the buffer support platform 331 can be a silicone pad.

[0076] As another example, multiple buffer support platforms 331 can be provided along the length of the lifting rod 31, which can further improve the buffering capacity of the safety glass 4 and thus enhance the protection of the safety glass 4.

[0077] In some embodiments, the distance between the bottom of the first segment 11 and the side of the buffer support platform 331 away from the bottom of the second segment 12 is the same as the length direction of the safety glass 4. This arrangement allows the receiving groove 121 to fully accommodate the safety glass 4 while reducing the impact force during the descent of the safety glass 4, thereby further improving the protection of the safety glass 4.

[0078] In some embodiments, the lifting mechanism 3 further includes a second buffer assembly 34; the second buffer assembly 34 includes a plurality of buffer springs 341; the plurality of buffer springs 341 are disposed at the bottom of the second section 12, the axial direction of the buffer springs 341 is the same as the direction of movement of the safety glass 4 in the receiving groove 121, and the buffer support platform 331 can contact the top of the buffer springs 341. When the safety glass 4 falls in the receiving groove 121, the safety glass 4 contacts the buffer support platform 331, and the buffer springs 341 deform, thus buffering the falling force of the safety glass 4 to a certain extent and preventing damage to the safety glass 4.

[0079] In some implementations, see Figure 1 The safety glass 4 has a warning section 41. For example, the warning section 41 can be a warning sticker. The warning section 41 can provide clear instructions and quick identification to trapped personnel and rescuers in the event of an emergency, thereby improving rescue efficiency.

[0080] As an example, the light transmittance of safety glass 4 is no less than 75 percent of that of the other flat glass.

[0081] As another example, the warning area could be a red equilateral triangle sticker.

[0082] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A reusable fire window characterized in that, The fire window comprises a window frame, safety glass, a blocking mechanism and a lifting mechanism; The window frame has a first section and a second section connected to each other; The first section has an opening, and the second section has a receiving groove; The safety glass has a first state and a second state, in the first state, the safety glass is arranged in the opening under the action of the blocking mechanism; In the second state, the opening and the receiving groove are in communication under the action of the blocking mechanism, and the safety glass is arranged in the receiving groove; The lifting mechanism is arranged in the receiving groove and is used to lift the safety glass in the receiving groove into the opening.

2. The reusable fire window of claim 1, wherein, The blocking mechanism comprises at least two oppositely arranged electromagnetic locks and a first control assembly for controlling the movement of the electromagnetic locks; The electromagnetic locks are arranged between the first section and the second section; in the first state, the output ends of the oppositely arranged electromagnetic locks are close to each other, the opening and the receiving groove are closed, and the safety glass is arranged in the opening; in the second state, the output ends of the oppositely arranged electromagnetic locks are away from each other, the opening and the receiving groove are in communication, and the safety glass is arranged in the receiving groove; The first control assembly is electrically connected with the electromagnetic locks and is configured to drive the output ends of the electromagnetic locks to advance or retract through electrical signals.

3. The reusable fire window of claim 2, wherein, The width of the output end of the electromagnetic lock is not less than one fifth of the thickness of the safety glass.

4. The reusable fire window of claim 2, wherein, The blocking mechanism further comprises a second control assembly; The second control assembly comprises a first connecting rod, a second connecting rod and a return spring; The first connecting rod is connected with the output end of the electromagnetic lock, and the movement direction of the first connecting rod is the same as that of the output end of the electromagnetic lock; The second connecting rod is connected with the first connecting rod, and the axial direction of the second connecting rod is perpendicular to the movement direction of the first connecting rod; The return spring is coaxially sleeved on the first connecting rod and is used to drive the first connecting rod to return.

5. The reusable fire window of claim 1, wherein, The lifting mechanism comprises a lifting rod and a driving assembly; The lifting rod is slidably arranged in the receiving groove through the driving assembly, and the lifting rod is located directly below the safety glass; The driving assembly is used to drive the lifting rod to move up and down in the receiving groove.

6. The reusable fire window of claim 5, wherein, The driving assembly comprises a driving motor, at least two driving pulleys, a driving belt and a connecting block; The driving pulleys are rotationally connected in the receiving groove; The driving belt is sleeved on the driving pulleys; The connecting block is connected with the driving belt; The lifting rod is connected with the connecting block, and the axial direction of the lifting rod is perpendicular to the movement direction of the safety glass in the receiving groove; The driving motor is used to drive the driving pulleys to rotate.

7. The reusable fire window of claim 6, wherein, The lifting mechanism further comprises a first buffer assembly; The first buffer assembly comprises at least one buffer bearing table; The buffer bearing table is connected with the lifting rod and is arranged close to the safety glass, and the buffer bearing table is made of flexible material.

8. The reusable fire window of claim 7, wherein, The distance between the bottom of the first section and the side of the bottom of the second section away from the second section is the same as the length direction of the safety glass.

9. The reusable fire window of claim 7, wherein, The lifting mechanism further comprises a second buffer assembly; The second buffer assembly comprises a plurality of buffer springs; The plurality of buffer springs are arranged at the bottom of the second section, the axial direction of the buffer springs is the same as the movement direction of the safety glass in the accommodating groove, and the buffer bearing table is capable of contacting the top of the buffer springs.

10. The reusable fire window of claim 1, wherein, The safety glass has a warning part.